Title:
VISUAL INSPECTION SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2018/176370
Kind Code:
A1
Abstract:
Disclosed are a visual inspection system and method. The method comprises: acquiring a first inspection image (21, 31) and a second inspection image (22, 32) of an object to be inspected (14) under different illumination conditions and/or photographing conditions (S11); and carrying out mathematical operations on luminance values of corresponding positions on the first inspection image (21, 31) and the second inspection image (22, 32) and then distinguishing a target to be inspected and interference on the object to be inspected (14) (S12). A target to be inspected and interference are effectively distinguished by using the synthesis of two inspection images acquired under different illumination conditions and/or photographing conditions.
More Like This:
| JP2001099828 | EGG CANDLER |
| JP2608972 | PROBLEM TO BE SOLVED: To detect defects in a semiconductor device. |
| JPH06258234 | SURFACE INSPECTION DEVICE |
Inventors:
YANG GUANG (CN)
HAO SHAOHUA (CN)
NIU LITAO (CN)
HAO SHAOHUA (CN)
NIU LITAO (CN)
Application Number:
PCT/CN2017/078962
Publication Date:
October 04, 2018
Filing Date:
March 31, 2017
Export Citation:
Assignee:
SHENZHEN A & E INTELLIGENT TECH INST CO LTD (CN)
International Classes:
G01N21/88
Foreign References:
| CN102292805A | 2011-12-21 | |||
| CN101034069A | 2007-09-12 | |||
| US20120106799A1 | 2012-05-03 | |||
| CN103245670A | 2013-08-14 |
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
Download PDF:
Previous Patent: METHOD TO AWAKEN A NETWORK ACCESS DEVICE FROM THE INTERNET
Next Patent: FLUE GAS TREATMENT DEVICE AND SYSTEM
Next Patent: FLUE GAS TREATMENT DEVICE AND SYSTEM